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321 Stainless Steel｜Foshan Huili Metal Technology Co., Ltd.（佛山市惠利金属科技有限公司）
Titanium-stabilized 18-8 austenitic that resists sensitization and intergranular corrosion during long service around 400–800℃, with oxidation resistance better than 304.
321不锈钢
AusteniticTitanium-stabilized 18-8 austenitic that resists sensitization and intergranular corrosion during long service around 400–800℃, with oxidation resistance better than 304.
Standards
| GB (China) | 06Cr18Ni11Ti（旧0Cr18Ni10Ti） |
|---|---|
| EN (Europe) | 1.4541 / X6CrNiTi18-10 |
| ASTM/UNS (USA) | 321 / UNS S32100 |
| JIS (Japan) | SUS321 |
Chemical composition (wt%)
| Chemical composition (wt%) | % |
|---|---|
C | ≤0.08 |
Si | ≤1.00 |
Mn | ≤2.00 |
Cr | 17.0–19.0 |
Ni | 9.0–12.0 |
Ti | ≥5×C |
Density：7.93 g/cm³
Performance
Titanium-stabilized 18-8 austenitic that resists sensitization and intergranular corrosion during long service around 400–800℃, with oxidation resistance better than 304.
Use cases
Aero-engine exhaust, boilers and heat exchangers, high-temperature piping, large welded structures that cannot be heat-treated after welding.
Characteristics
Titanium ties up carbon for post-weld intergranular resistance, but titanium also affects polishing/pickling via weld oxides.
Pitfalls & cautions
Related grades
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